/*
 * Copyright 2016 ZTE Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
(function(Application){

	Application.Model.Element = Backbone.Model.extend({
		
		defaults:{
			connections: [],
			type: ""
		},

		addConnection: function(element){
			if(!_.contains(this.get("connections"), element)){
				this.set("connections", _.union(_.clone(this.get("connections")), [element]));
			}
			return this;
		},

		initialize: function(){
			if(!this.has("id")) this.set({id: _.uniqueId("element")});
		},

		removeConnection: function(element){
			if(_.contains(this.get("connections"), element)){
				this.set("connections", _.without(_.clone(this.get("connections")), element));
			}
			return this;
		},

		toJSON: function(){
			return this.attributes;
		}

	});

})(window.BPMN4TOSCAModeler);